Questions tagged [bagfiles]

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Rerecording ros bag files leads to different counts on the same topics between recordings

I recorded a rosbag during testing but realized afterwards that I had published one of the messages on the /data topic wrong. I wanted to fix this data and put it on a new topic but still have the ...
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Migrating ROS Noetic rosbags to ROS2

I want to use a dataset that has collected Bags of trajectory data, namely the MuSoHu dataset. In its dependencies, it states that a ROS Noetic installation is required. In the scope that I want to ...
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Large Dicom File Shares

Neophyte asking- Issue is large dicom files sending to remote workstations and a diagnosis of too many bags. What is best solution?
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How to send a complex request and save a complex response (service) in ROS?

Hi I don´t have a high level in ROS so I would request your help. Last weeks I was trying to make a client for testing that package https://github.com/sniekum/dmp Alwais I had problems running it (the ...
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Can you convert a color topic from a bag file to monochrome?

Hi I am using the ethzasl_ptam package. It requires monochrome images. I want to use RGB-D bag files. The images come in on the /camera/rgb/image_color topic. Is there a way convert a color topic from ...
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how to read a text file and publish the data

i am trying to read a file.txt in my home directory and publish the integer value extracted from the file how can i do that can someone help plz Originally posted by naqi.nick on ROS Answers with ...
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merged splitted bagfiles?

Is there a way to merged splitted bagfiles? I have: data0.bagfile data1.bagfile data2.bagfile ... And all of them are from the same recordbag with the option --split --duration=30 each of them are 30 ...
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simultaneous Rosbag record and playback

Can I playback .bag at the same time as it is getting recorded ? Can I map my laser scans in real-time ? Originally posted by aniket on ROS Answers with karma: 7 on 2014-10-25 Post score: 0
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can "rosbag filter" create a new bag file with multiple topics within it?

Hello, I have a bagfile with a lot of topics in it. For some reason I would like to filter out 4 topics of that bagfile into a new bagfile: ...
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Can't read bagfile containing custom messages

I have a bag file with video and imu data defined with custom messages that I want to read (especially topics /capture and /imu_raw). I know from documentation what the structure of the custom ...
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How to read latitude and longitude information from /GPSFix message in my bagfile?

Hi friends, i am having a bagfile containing /GPSFix information. i want to read and publish its information using gpsd. for that i used gpsd_client tutorial. I have given rosbag node port number for ...
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How to play rosbag using launch file?

I'm trying to play a bagfile using following launch file. ...
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bag file request

I'm working on a project that requires collecting a large set of data; anything from a few hours to a week's worth of scan (sensor_msgs/LaserScan) and tf (tf/tfMessage) topics, preferably recorded ...
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Laserscan bag to film

Hi everyone, i'm looking for a method to automatically generate films from laserscan bags. Important is that it's also possible to set the camera perspective. So far i've been thinking about ...
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how to time-index the bag files?

Hello I would like to know how to time-index the bag files. I think filenames can be time-stamp with actual ROS real-time. Im I wright?? Any help on this?? Thanks Originally posted by Astronaut on ...
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Error while writing from bag file to csv

Hi all! I'm trying to extract data from a bag file and save it into a csv. For this I've been using: rostopic echo -p --nosstr --noarr -b bagfile.bag /topic > name.csv But now I also want to filter ...
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"rosbag record" vs "rosbag::Bag"

Hi, When I usually log kinect and other large data, I use "rosbag::Bag" insted of "rosbag record" command. Because a bag made by "rosbag record" has some timestamp delay ...
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Running Ros Openni Tracker from bag files

Hi, I have a bag file which has /camera/depth_registered/image_rect_raw. I was thinking to receive data and create depth nodes from this topic in ros openni tracker rather than the live data from the ...
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Minimal Topics for RGBDSLAM?

I'd like to record some bag files of Kinect data and then run RGBDSLAM on them later. (The computer I'm doing the collection with isn't up to doing the RGBDSLAM itself.) The problem is that I want to ...
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Example bagfile of SICK LIDAR data on robot driving around

I'm interested in some example bagfile data of a robot driving around indoors with one of the large SICK scanners like the SICK LMS 200 (180 deg FOV, 1 deg angular resolution, high update rate of 75Hz)...
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